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According to the Water Quality Association, the hardness scale, measured in gpg of calcium carbonate, can be represented as follows: Less than 1 gpg is considered soft Between 1 and 3.5 gpg is considered slightly hard
The majority of findings are delivered as a number that reports the concentration of calcium carbonate or other equivalents for a given unit of water. The water hardness scale result may be expressed in parts per million (ppm), grains per gallon (gpg), or milligrams per liter (mg/L).
We express water hardness in a lot of different units. These include PPM, GPG, °dH/dGH, mg/L, mmol/L,°fH/fGH, Clark degrees (°e or °Clark), TDS, and EC (microsiemens/cm). Understandably, with so many water hardness units, it’s easy to feel a bit confused.
31 Μαΐ 2022 · Your water softener hardness setting should be based on your water supplies water hardness level and its iron concentration, for example a water hardness level of 25 grains per gallon (gpg) and 0.3 parts per million (ppm) of iron would result in a water softener hardness setting of 27.
The level of hardness is measured in grains per gallon (gpg) or milligrams per liter (mg/L). Water that registers between 0-1 gpg is considered soft; moderately hard water reads at 3.5-7 gpg; and any water with gpg over 7 is classified hard to very hard.
To find out what size water softener you need, you must identify factors such as water hardness levels and daily water consumption habits, then use this information to choose the proper softener capacity.
One grain per gallon (gpg) is equivalent to 17.14 parts per million (ppm). Water hardness can be measured in gpg or ppm, but gpg is the most commonly used measurement. 20,000–80,000: This range signifies the grain capacity of most water softeners available on the market.
